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2014 GMC Sierra DenaliProblems, recalls & complaints

NHTSA has logged 14 owner complaints about the 2014 GMC Sierra Denali, most often about the service brakes. It has no vehicle safety recalls on record.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls0None on recordOwner complaints140 with a crash, fire or injuryTypical failure mileage46kService brakes, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through January 5, 2021. Updated daily.

Complaints by system

Where the 2014 GMC Sierra Denali has problems

14 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Service brakes30
Structure20
Air bags20
Power train10
Service brakes, hydraulic10
Suspension10
Vehicle speed control10
Wheels10
Engine10
2 other systems20

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

0 recalls

2014 GMC Sierra Denali recalls and how many were fixed

No vehicle safety recalls are on record for this model year.

Best & worst years

2014 vs. every other Sierra Denali year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Sierra Denali median. How we score

'02'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
1 investigation

NHTSA defect investigations

Federal investigations that included the 2014 GMC Sierra Denali, and the recalls they led to.

  1. Desiccated Air Bag Inflator RuptureEA21002 · still open
    Open
In owners' words

What Sierra Denali owners report

Recent service brakes complaints filed with NHTSA, shortened. Personal details are removed.

IF THE BRAKES ARE PUMPED 2-3 TIMES THE PEDDLE WILL BECOME REALLY FIRM AND HARD TO PRESS. WHEN THIS OCCURS THE TRUCK WILL NOT STOP. YOU HAVE TO STAND ON THE BRAKE PEDAL WITH BOTH FEET TO GET THE TRUCK TO STOP. PRETTY UNNERVING FOR A 75K MIKE TRUCK STILL UNDER DRIVETRAIN WARRANTY BUT NOT COVERED. I…
Complaint 11187199 · Mar 16, 2019 · 70,000 miles
VACUUM PUMP FAILURE WAS NOTICED WHEN PARALLEL PARKING. AFTER HITTING BRAKE SEVERAL TIMES THEY STOPPED WORKING. TOOK EXCESSIVE AMOUNT OF FORCE TO STOP VEHICLE.
Complaint 11170676 · Jan 17, 2019 · 46,000 miles

Own a 2014 Sierra Denali?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.